Two-phase flow characteristics in gas–liquid microreactors

Experimental study of gas-liquid flow local characteristics in rectangular microchannel

“…Based on the visualization and laser scanning method, flow pattern maps were constructed for 2 types of mixtures using the dimensionless complex Re 0. 2 We 0.4 , proposed by Waelchli [9]. The dimensionless complex makes it possible to take into account the physical properties of the liquid and gives a good generalization of the experimental data.…”

“…microchannel (2). Connectors (8,9) allow removing the tank and pour liquid very rapidly. Gas and liquid flow controllers (3,4) by Bronkhorst are powered by power supplies (5, 6) of the same company.…”

“…In paper [7] local characteristics of the flows (such as liquid distribution in microchannel) were investigated. These characteristics are used for creating heat and mass transfer models such as for example in [8,9].The present study aims at conducting the experiments of gas-liquid flow using liquids with different physical properties and generalizing flow pattern maps for vertical and horizontal flows.…”

Структурные Характеристики Газожидкостного Течения В Микроканале С Т-Образным Смесителем

“…Козулин... от 10 до 30 mm. Сравнение режимов течения смесей азот−вода и азот−этанол приведено в [6] для микроканалов прямоугольного сече-ния с D h = 187.5−218 µm и Т-образным входом. В [7] рассмотрено влияние статического давления на режим течения смеси азот−вода в микроканале с сечением 300 × 600 µm с Т-образным входом.…”

Investigation of Two-Phase Flow in Short Horizontal Mini Channel Height of 1 MM

“…An overview of publications on the two-phase flow in the channels of various configurations can be found in [2][3][4]. The analysis of the works shows that the structure of the two-phase flow is mainly influenced by the following parameters: geometry and dimensions of the channel [5,6], parameters of the input area [7] and fluid properties, such as viscosity and surface tension [8,9]. Many works describe round channels, although rectangular channels are more promising for the use in thermal stabilization systems.…”